Patents by Inventor Tatsuya Furukawa
Tatsuya Furukawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090082621Abstract: The present invention has an object to provide an electric bending endoscope apparatus with a configuration which is always capable of securing favorable operability at a time of using an endoscope without placing a weight burden on an operator when operating the endoscope, and for the purpose, the electric bending endoscope apparatus includes at least an electric bending endoscope that is configured by an elongated insertion portion which is inserted into a body cavity, a bending drive section which electrically drives a part of the insertion portion to bend, and an operation portion configured to be separate from the bending drive section and electrically connected to the bending drive section, and performs observation and treatment of an inside of the body cavity, a system controller which is electrically connected to the electric bending endoscope and centrally controls the electric bending endoscope, and an endoscope holding device configured by a bending drive unit which contains the bending drive sectiType: ApplicationFiled: April 7, 2006Publication date: March 26, 2009Inventors: Yuichi Ikeda, Tatsuya Furukawa, Masanobu Koitabashi, Haruhiko Ueno, Noriaki Kanazawa, Tatsuya Ishizuka, Yutaka Masaki
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Publication number: 20070265500Abstract: To provide an electric bending endoscope device provided with a bending operation input member having a configuration capable of obtaining desired operation resistance with a simple configuration which can contribute to improve the operability. The electric bending endoscope device include a bending drive portion for operating an bending portion provided at a distal end side of an insertion portion to perform a bending operation, a bending operation input portion for instructing and inputting the bending operation to the bending portion, a plate-shaped member which moves in conjunction with a movement of an operation element of the bending operation input portion, a housing body which is housed to surround at least a part of the plate-shaped member and the plate-shaped member can move in the inside, and a viscous fluid sealed in the housing body.Type: ApplicationFiled: July 17, 2007Publication date: November 15, 2007Applicant: Olympus CorporationInventors: Masanobu Koitabashi, Tatsuya Furukawa
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Publication number: 20070238927Abstract: A power driven bending endoscope with detachable insertion portion 2 is formed of an insertion body 3 having a flexible bending portion 3B, and a motor unit 4 having an electric motor 23 for driving to bend the bending portion 3B and a potentiometer 26 for detecting a bending state of the bending portion 3B, which are detachably coupled.Type: ApplicationFiled: June 1, 2007Publication date: October 11, 2007Applicant: Olympus CorporationInventors: Haruhiko Ueno, Yuichi Ikeda, Tatsuya Ishizuka, Tatsuya Furukawa, Yutaka Masaki, Masanobu Koitabshi, Noriaki Kanazawa
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Publication number: 20070232856Abstract: An endoscope 2 includes an insertion body 3 equipped with a potentiometer 26 for detecting a bending state of a bending portion 3B which is allowed to be bent and inserted into a subject and an electric connector 18c for outputting an electric signal as a detection result of the potentiometer 26, and a motor unit 4 detachable with respect to the insertion body 3 via an attachment/detachment portion 14, which is equipped with an electric motor 23 for bending the bending portion 3B.Type: ApplicationFiled: May 31, 2007Publication date: October 4, 2007Applicant: Olympus CorporationInventors: Haruhiko Ueno, Tatsuya Ishizuka, Yuichi Ikeda, Tatsuya Furukawa, Yutaka Masaki, Masanobu Koitabashi, Noriaki Kanazawa
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Publication number: 20070149855Abstract: An endoscope includes an image capturing unit which is provided with at least a plurality of optical lenses, a zoom lens frame for supporting the optical lenses for zooming out of the plurality of optical lenses, and a first actuator for moving forward and reversely the zoom lens frame in an optical axis direction. The first actuator extends or contracts in accordance with an interruption of power supply.Type: ApplicationFiled: March 7, 2007Publication date: June 28, 2007Inventors: Toshiaki NOGUCHI, Sumihiro UCHIMURA, Tatsuya FURUKAWA, Masahiro KAWAUCHI, Fumiyuki ONODA, Hiroki MORIYAMA, Ryuichi TOYAMA
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Publication number: 20070149852Abstract: An endoscope is provided which has good operability, such as ease of varying the rigidity of an insertion portion, as well as a lighter-weight bending mechanism for changing the shape of a bending portion. The endoscope according to the present invention comprises an insertion portion to be inserted into a subject, an electroconductive expanding/contracting member which can expand/contract the insertion portion in the lengthwise direction and which is for expanding/contracting according to the state of voltage application, and electrodes for applying the voltage supplied from a power source to the electroconductive expanding/contracting member.Type: ApplicationFiled: March 6, 2007Publication date: June 28, 2007Inventors: Toshiaki NOGUCHI, Sumihiro UCHIMURA, Tatsuya FURUKAWA, Masahiro KAWAUCHI, Fumiyuki ONODA, Hiroki MORIYAMA, Ryuichi TOYAMA, Hiroshi NIWA, Hisashi KUROSHIMA, Hitoshi HASEGAWA, Eiri SUZUKI, Akio OGAWA, Masanori GOCHO, Noriaki ITO, Satoshi ITOYA
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Publication number: 20070143620Abstract: A method of certifying the existence of electronic information released on a network at a time and date. The network connects one or more computer servers and a plurality of client computers with each other. Electronic information of a web page stored in one of the plurality of client computers is accessed using information of its location from one of the computer servers based on a request from one of the client computers. A copy of the electronic information is then obtained. Attribute information is generated from the location, access time, and date when the electronic information is accessed. An electronic certificate may be generated by uniquely specifying the electronic information and the attribute information as inherent information identifying the electronic information. The copy of the electronic information is stored in a memory by tying up the electronic information with the electronic certificate and the attribute information.Type: ApplicationFiled: November 21, 2006Publication date: June 21, 2007Inventors: Yoichi Kanai, Masuyoshi Yachida, Tomio Mizuno, Tatsuya Furukawa, Yoichi Ishikawa
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Patent number: 7143144Abstract: A method of certifying the existence of electronic information released on a network at a time and date. The network connects one or more computer servers and a plurality of client computers with each other. Electronic information of a web page stored in one of the plurality of client computers is accessed using information of its location from one of the computer servers based on a request from one of the client computers. A copy of the electronic information is then obtained. Attribute information is generated from the location, access time, and date when the electronic information is accessed. An electronic certificate may be generated by uniquely specifying the electronic information and the attribute information as inherent information identifying the electronic information. The copy of the electronic information is stored in a memory by tying up the electronic information with the electronic certificate and the attribute information.Type: GrantFiled: November 30, 2000Date of Patent: November 28, 2006Assignee: Ricoh Company, Ltd.Inventors: Yoichi Kanai, Masuyoshi Yachida, Tomio Mizuno, Tatsuya Furukawa, Yoichi Ishikawa
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Publication number: 20060118215Abstract: The precipitation hardened martensitic stainless steel is characterized by containing, in percent by weight, 12.25 to 14.25% Cr, 7.5 to 8.5% Ni, 1.0 to 2.5% Mo, 0.05% or less C, 0.2% or less Si, 0.4% or less Mn, 0.03% or less P, 0.005% or less S, 0.008% or less N, 0.90 to 2.25% Al, the balance substantially being Fe, and the total content of Cr and Mo being 14.25 to 16.75%. A turbine moving blade and a steam turbine are manufactured by using this martensitic stainless steel.Type: ApplicationFiled: May 24, 2005Publication date: June 8, 2006Inventors: Yuichi Hirakawa, Yoshikuni Kadoya, Hiroharu Ooyama, Tatsuya Furukawa, Naoto Tochitani
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Publication number: 20060050580Abstract: A semiconductor device including memory cells such as flip-flops, RAMs or SRAMs is powered on, and first logic signals of Hi or Lo output from the respective memory cells are obtained. A combination of the logic signals is used as a unique identification code for identifying a semiconductor device.Type: ApplicationFiled: August 4, 2005Publication date: March 9, 2006Inventors: Yoshiaki Yamaguchi, Tatsuya Furukawa, Koichi Shimokawa
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Patent number: 6991602Abstract: A medical treatment method comprises orally inserting a first endoscope having a first treatment tool provided thereto into a body cavity, inserting a first insertion member insertion support tool from at least one of abdominal and transdermal cavities into the body cavity, inserting a second endoscope having a second treatment tool provided thereto into the body cavity through the first insertion member insertion support tool, grasping a lesioned part by the second treatment tool inserted into the body cavity by the second endoscope, cutting the lesioned part by the first treatment tool inserted into the body cavity by the first endoscope, and collecting the lesioned part.Type: GrantFiled: December 31, 2002Date of Patent: January 31, 2006Assignee: Olympus CorporationInventors: Masaaki Nakazawa, Toshio Nakamura, Hidenobu Kimura, Tatsuya Furukawa, Koji Yamaya, Nobuyuki Matsuura, Hisao Yabe
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Publication number: 20030135091Abstract: A medical treatment method comprises orally inserting a first endoscope having a first treatment tool provided thereto into a body cavity, inserting a first insertion member insertion support tool from at least one of abdominal and transdermal cavities into the body cavity, inserting a second endoscope having a second treatment tool provided thereto into the body cavity through the first insertion member insertion support tool, grasping a lesioned part by the second treatment tool inserted into the body cavity by the second endoscope, cutting the lesioned part by the first treatment tool inserted into the body cavity by the first endoscope, and collecting the lesioned part.Type: ApplicationFiled: December 31, 2002Publication date: July 17, 2003Inventors: Masaaki Nakazawa, Toshio Nakamura, Hidenobu Kimura, Tatsuya Furukawa, Koji Yamaya, Nobuyuki Matsuura, Hisao Yabe
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Publication number: 20010002472Abstract: A method of certifying the existence of electronic information released on a network at a time and date. The network connects one or more computer servers and a plurality of client computers with each other. Electronic information of a web page stored in one of the plurality of client computers is accessed using information of its location from one of the computer servers based on a request from one of the client computers. A copy of the electronic information is then obtained. Attribute information is generated from the location, access time, and date when the electronic information is accessed. An electronic certificate may be generated by uniquely specifying the electronic information and the attribute information as inherent information identifying the electronic information. The copy of the electronic information is stored in a memory by tying up the electronic information with the electronic certificate and the attribute information.Type: ApplicationFiled: November 30, 2000Publication date: May 31, 2001Inventors: Yoichi Kanai, Masuyoshi Yachida, Tomio Mizuno, Tatsuya Furukawa, Yoichi Ishikawa
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Patent number: 5860913Abstract: In an endoscope of the present invention, while a cover indicator on a distal cover is aligned with a scope indicator on a main distal part, the distal cover is put on the main distal part in an axial direction at a certain insertion angle. Thereafter, the distal cover is rotated while being thrust in the axial direction. The stoppage of a locking convex part of a hook of the main distal part by a claw of a reinforcement member is released, and the locking convex part of the hook is positioned in a locking ditch of the reinforcement member. The head of the hook is constrained to move in the axial direction by means of a main distal cover that is an elastic member and the claw. The locking convex part is then fitted into the locking ditch reliably. Consequently, the distal cover can be fixed to the main distal part readily, freely detachably, and reliably with high positioning precision.Type: GrantFiled: April 29, 1997Date of Patent: January 19, 1999Assignee: Olympus Optical Co., Ltd.Inventors: Koji Yamaya, Tatsuya Furukawa, Takahiro Kishi, Tsugio Okazaki, Haruhiko Kaiya, Hisao Yabe, Tsutomu Ishiguro
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Patent number: 5730701Abstract: A tip ring 18 for forming a lock mechanism for locking a tip cover 51 is formed in a circumferential part with a lock projection 22 for forming a lock groove 26 which becomes a recess of the lock mechanism on the endoscope tip side between the lock projection and curved rubber 19. A lock piece which becomes a projection of the lock mechanism of the tip cover 51 is locked into the lock groove 26 made by disposing the tip ring 18 and the curved rubber 19. To enhance the attachment property of the lock piece 52 to the lock groove 26, the lock projection 22 is formed with a slant projection 27 which becomes a slope for guiding the lock piece 52 to the lock groove 26. The slant projection 27 is formed as a slope projecting to the tip side from the lock projection 22 and rising from the tip bottom face to the top face of the lock projection 22.Type: GrantFiled: February 14, 1996Date of Patent: March 24, 1998Assignee: Olympus Optical Co., Ltd.Inventors: Tatsuya Furukawa, Yoshihiro Iida, Koji Nakamoto
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Patent number: 5707344Abstract: An endoscope includes an operating portion placed outside a living body, an insertion portion having a proximal end portion coupled to the operating portion, a distal end portion inserted in the living body, and an instrument insertion channel extending through the insertion portion, a raising mechanism having an operation wire and designed to direct the distal end portion of an instrument, caused to extend through the channel, to a predetermined position, and an operation means for operating the operation wire. The endoscope includes a distal end body portion arranged at the distal end portion of the insertion portion and incorporating an observation means for observing the interior of the living body, a support member for forming at least a portion of the outer surface of the distal end portion. The support member is detachable from the distal end body portion.Type: GrantFiled: April 25, 1996Date of Patent: January 13, 1998Assignee: Olympus Optical Co., LTD.Inventors: Masaaki Nakazawa, Hideo Ito, Koji Nakamoto, Yasuhito Kura, Seiji Kitano, Hisao Yabe, Tatsuya Furukawa
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Patent number: 5688221Abstract: An endoscope cover according to the present invention has an arrangement that at least a portion of a control-portion cover for covering the control portion of a cover-type endoscope that corresponds to a soft portion of the cover-type endoscope has uniform flexibility that does not deteriorate the flexibility of said soft portion so that the insertion facility at the time of an inspection with the endoscope is maintained. An endoscope system of a type having an endoscope cover according to the present invention has a warp control knob disposed away from the body of a control portion also serving as a holding portion of the cover-type endoscope, the system having an arrangement that a warping mechanism included in the body of the control portion and the warp control knob are connected to each other by a connection member.Type: GrantFiled: March 26, 1993Date of Patent: November 18, 1997Assignee: Olympus Optical Co., Ltd.Inventors: Hisao Yabe, Yoshihiro Iida, Akira Suzuki, Hideo Ito, Yoshio Tashiro, Minoru Yamazaki, Osamu Tamada, Tatsuya Furukawa
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Patent number: 5619617Abstract: A neuron unit processes a plurality of input signals and outputs an output signal which is indicative of a result of the processing. The neuron unit includes input lines for receiving the input signals, a forward process part including a supplying part for supplying weight functions and an operation part for carrying out an operation on each of the input signals using one of the weight functions and for outputting the output signal, and a self-learning part including a generating part for generating new weight functions based on errors between the output signal of the forward process part and teaching signals and a varying part for varying the weight functions supplied by the supplying part of the forward process part to the new weight functions generated by the generating part.Type: GrantFiled: September 30, 1993Date of Patent: April 8, 1997Assignee: Ricoh Company, Ltd.Inventors: Toshiyuki Furuta, Hiroyuki Horiguchi, Hirotoshi Eguchi, Yutaka Ebi, Tatsuya Furukawa, Yoshio Watanabe, Toshihiro Tsukagoshi
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Patent number: 5581662Abstract: A hierarchical signal processing apparatus includes aggregates having logic operation portions. The apparatus compares a final output signal from a logic operation portion in a final aggregate with a teaching signal, and generates an error signal by taking a signal which exists only in the teaching signal as a positive error signal, and taking a signal which exists only in said final output signal as a negative error signal.Type: GrantFiled: May 15, 1995Date of Patent: December 3, 1996Assignee: Ricoh Company, Ltd.Inventors: Toshiyuki Furuta, Hiroyuki Horiguchi, Hirotoshi Eguchi, Yutaka Ebi, Tatsuya Furukawa, Yoshio Watanabe, Toshihiro Tsukagoshi
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Patent number: 5569157Abstract: An endoscope includes an operating portion placed outside a living body, an insertion portion having a proximal end portion coupled to the operating portion, a distal end portion inserted in the living body, and an instrument insertion channel extending through the insertion portion, a raising mechanism having an operation wire and designed to direct the distal end portion of an instrument, caused to extend through the channel, to a predetermined position, and an operation means for operating the operation wire. The endoscope includes a distal end body portion arranged at the distal end portion of the insertion portion and incorporating an observation means for observing the interior of the living body, a support member for forming at least a portion of the outer surface of the distal end portion. The support member is detachable from the distal end body portion.Type: GrantFiled: May 2, 1994Date of Patent: October 29, 1996Assignee: Olympus Optical Co., Ltd.Inventors: Masaaki Nakazawa, Hideo Ito, Koji Nakamoto, Yasuhito Kura, Seiji Kitano, Hisao Yabe, Tatsuya Furukawa